There was a recent study out of Mississippi that looked into this, and it turns out that their findings support exactly what the Indiana biologist(s) stated, and that Indiana has the right regulation in place. Result highlights included the following:
> On average, the catch per hour for crappie "trollers" with no restrictions on number of poles used was 3 times greater than for single "polers."
> The more poles used, the greater the crappie catch rate, though the curve did flatten out, suggesting you eventually reach a point of diminishing returns with more poles.
> The average harvest rate for one troller fishing with three poles was similar to the harvest rate obtained by one poler, suggesting Indiana regs strike the perfect balance based on the data.
> Also based on their findings, they were able to model possible scenarios. With a 50/50 mix of polers and trollers (unlimited number of poles), crappie harvest goes up by 30 percent versus a single pole restricted fishery. And, if a fishery becomes a 100% trolling fishery (no single polers), anglers would harvest about 70% more crappie than a single pole only fishery.
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